Return to objc-private.h CVS log

Up to [Apple Darwin 0.x] / objc

Annotation of objc/objc-private.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.0 (the 'License').  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License."
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: /*
        !            25:  *     objc-private.h
        !            26:  *     Copyright 1988, NeXT, Inc.
        !            27:  */
        !            28: 
        !            29: #ifndef _OBJC_PRIVATE_H_
        !            30: #define _OBJC_PRIVATE_H_
        !            31: 
        !            32: #import "objc-config.h"
        !            33: 
        !            34: #ifdef KERNEL
        !            35: #import        <mach/mach_types.h>
        !            36: #import        <mach/machine/simple_lock.h>
        !            37: 
        !            38: #define        mutex_alloc()   simple_lock_alloc()
        !            39: #define        mutex_init(x)   simple_lock_init(x)
        !            40: #define        mutex_lock(x)   simple_lock(x)
        !            41: #define        mutex_try_lock(x)       simple_lock_try(x)
        !            42: #define        mutex_unlock(x) simple_unlock(x)
        !            43: #define        mutex_clear(x)
        !            44: #define mutex          slock
        !            45: #define        mutex_t         simple_lock_t
        !            46: #else /* KERNEL */
        !            47: #import <mach/cthreads.h>
        !            48: #endif /* KERNEL */
        !            49: 
        !            50: #import <stdlib.h>
        !            51: #import <stdarg.h>
        !            52: #import <stdio.h>
        !            53: #import <string.h>
        !            54: #import <ctype.h>
        !            55: 
        !            56: #import "objc.h"
        !            57: #import "objc-runtime.h"
        !            58: #import "hashtable.h"
        !            59: 
        !            60: #import <sys/time.h>
        !            61: 
        !            62: struct header_info
        !            63: {
        !            64:   const struct mach_header *mhdr;
        !            65:   Module mod_ptr;
        !            66:   unsigned int mod_count;
        !            67:   void *frozenTable;
        !            68:   unsigned long image_slide;
        !            69:   unsigned int objcSize;
        !            70: };
        !            71: extern struct header_info *_objc_headerVector (const struct mach_header * const *machhdrs);
        !            72: extern unsigned int _objc_headerCount (void);
        !            73: extern void _objc_addHeader (const struct mach_header *header, long vmaddr_slide);
        !            74: extern void _objc_removeHeader (const struct mach_header *header);
        !            75: extern SEL __S(_sel_registerName)(const char *str);
        !            76: 
        !            77: /* utilities */
        !            78: static inline unsigned int _objc_strhash (const unsigned char *s)
        !            79: {
        !            80:   unsigned int hash = 0;
        !            81: 
        !            82:   /* Unroll the loop. */
        !            83:   while (1)
        !            84:     { 
        !            85:       if (*s == '\0') 
        !            86:        break;
        !            87:       hash ^= *s++;
        !            88:       if (*s == '\0') 
        !            89:        break;
        !            90:       hash ^= *s++ << 8;
        !            91:       if (*s == '\0') 
        !            92:        break;
        !            93:       hash ^= *s++ << 16;
        !            94:       if (*s == '\0') 
        !            95:        break;
        !            96:       hash ^= *s++ << 24;
        !            97:     }
        !            98:   
        !            99:   return hash;
        !           100: }
        !           101: 
        !           102: extern const char *__S(_nameForHeader) (const struct mach_header *);
        !           103: 
        !           104: /* debug */
        !           105: extern int gettime(void);
        !           106: extern void print_time(const char *, int, struct timeval *);
        !           107: 
        !           108: /* initialize */
        !           109: extern void __S(_sel_init) (const struct mach_header *,
        !           110:                       const char *, unsigned int, void *);
        !           111: extern void __S(_sel_unloadSelectors)(const char *, const char *);
        !           112: extern void _class_install_relationships(Class, long);
        !           113: extern void _objc_add_category(Category, int);
        !           114: extern void _objc_remove_category(Category, int);
        !           115: extern void _class_removeProtocols(Class, struct objc_protocol_list *);
        !           116: extern NXZone *_objc_create_zone(void);
        !           117: extern void _objc_removeClass(Class);
        !           118: 
        !           119: /* method lookup */
        !           120: extern BOOL class_respondsToMethod(Class, SEL);
        !           121: extern IMP class_lookupMethod(Class, SEL);
        !           122: extern IMP class_lookupMethodInMethodList(struct objc_method_list *mlist, 
        !           123:                                           SEL sel);
        !           124: 
        !           125: /* message dispatcher */
        !           126: extern Cache _cache_create(Class);
        !           127: extern IMP _class_lookupMethodAndLoadCache(Class, SEL);
        !           128: extern id _objc_msgForward (id self, SEL sel, ...);
        !           129: 
        !           130: /* errors */
        !           131: volatile void __S(_objc_fatal)(const char *message);
        !           132: extern volatile void _objc_error(id, const char *, va_list);
        !           133: extern volatile void __objc_error(id, const char *, ...);
        !           134: extern void _objc_inform(const char *fmt, ...);
        !           135: extern void _NXLogError(const char *format, ...);
        !           136: 
        !           137: /* magic */
        !           138: extern Class _objc_getFreedObjectClass (void);
        !           139: extern Class _objc_getNonExistentClass (void);
        !           140: extern const struct objc_cache emptyCache;
        !           141: extern void _objc_flush_caches (Class cls);
        !           142: 
        !           143: /* locking */
        !           144: extern int _objc_multithread_mask;
        !           145: extern struct mutex classLock;
        !           146: extern struct mutex messageLock;
        !           147: 
        !           148: #ifdef KERNEL
        !           149: #ifdef hppa  /* The sense of kernel locks on the hp are backwards! */
        !           150: #define OBJC_DECLARE_LOCK(MUTEX) struct slock MUTEX = { -1,-1,-1,-1 }
        !           151: #elif defined(ppc)
        !           152: #define OBJC_DECLARE_LOCK(MUTEX) struct slock MUTEX = { 0, 0, 0, 0 }
        !           153: #else
        !           154: #define OBJC_DECLARE_LOCK(MUTEX) struct slock MUTEX = { 0 }
        !           155: #endif hppa
        !           156: #define OBJC_LOCK(MUTEX)
        !           157: #define OBJC_UNLOCK(MUTEX)
        !           158: #define OBJC_TRYLOCK(MUTEX)    1
        !           159: 
        !           160: #else /* KERNEL */
        !           161: 
        !           162: #define OBJC_DECLARE_LOCK(MUTEX) struct mutex MUTEX = { 0, #MUTEX }
        !           163: 
        !           164: #ifdef FREEZE
        !           165: #define OBJC_LOCK(MUTEX)
        !           166: #define OBJC_UNLOCK(MUTEX)
        !           167: #else /* FREEZE */
        !           168: #ifdef OBJC_COLLECTING_CACHE
        !           169: #define OBJC_LOCK(MUTEX)       mutex_lock (MUTEX)
        !           170: #define OBJC_UNLOCK(MUTEX)     mutex_unlock (MUTEX)
        !           171: #define OBJC_TRYLOCK(MUTEX)    mutex_try_lock (MUTEX)
        !           172: #else
        !           173: #define OBJC_LOCK(MUTEX)               \
        !           174:   do                                   \
        !           175:     {                                  \
        !           176:       if (!_objc_multithread_mask)     \
        !           177:        mutex_lock (MUTEX);             \
        !           178:     }                                  \
        !           179:   while (0)
        !           180: 
        !           181: #define OBJC_UNLOCK(MUTEX)             \
        !           182:   do                                   \
        !           183:     {                                  \
        !           184:       if (!_objc_multithread_mask)     \
        !           185:        mutex_unlock (MUTEX);           \
        !           186:     }                                  \
        !           187:   while (0)
        !           188: 
        !           189: #endif /* OBJC_COLLECTING_CACHE */
        !           190: #endif /* FREEZE */
        !           191: #endif /* KERNEL */
        !           192: 
        !           193: #endif /* _OBJC_PRIVATE_H_ */

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.